Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Li, Bo; Li, Xiaohui; Zhang, Kaiqiang; Li, Hui; Zhao, Yunhui; Ren, Lixia; Yuan, Xiaoyan

doi:10.1016/j.porgcoat.2014.09.004

Cited by 34 publications

(9 citation statements)

References 40 publications

(50 reference statements)

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“…According to our previous studies on POSS-containing fluorosilicone block copolymers, POSS groups with a low surface energy could migrate and aggregate on the coating surfaces, endowing them with hydrophobicity for anti-icing. − By integrating POSS with both PDMAEMA and PSBMA via atom transfer radical polymerization (ATRP), in this work, we prepared the amphiphilic SIPN coatings from POSS-PDMAEMA- b -PSBMA block copolymers with a small amount (10 wt %) of EGDMA via UV-curing. We supposed that PDMAEMA and PSBMA blocks in the cross-linked PEGDMA network coupled with hydrophobic POSS groups could facilitate absorption of water or vapor molecules into the coatings to enhance the antifogging performance.…”

Section: Introductionmentioning

confidence: 99%

Amphiphilic Antifogging/Anti-Icing Coatings Containing POSS-PDMAEMA-b-PSBMA

Tao

et al. 2017

ACS Appl. Mater. Interfaces

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133

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Highly transparent antifogging/anti-icing coatings were developed from amphiphilic block copolymers of polyhedral oligomeric silsesquioxane-poly[2-(dimethylamino)ethyl methacrylate]-block-poly(sulfobetaine methacrylate) (POSS-PDMAEMA-b-PSBMA) with a small amount of ethylene glycol dimethacrylate (EGDMA) via UV-curing. The excellent antifogging properties of the prepared coatings were originated from the hygroscopicity of both PDMAEMA and PSBMA blocks in the semi-interpenetrating polymer network (SIPN) with polymerization of EGDMA and hydrophobic POSS clusters aggregated on the surface. PDMAEMA with a lower critical solution temperature and PSBMA with an upper critical solution temperature in the block copolymers facilitated dispersion and absorption of water molecules into the SIPN coatings, fulfilling the enhanced antifogging function. Analysis of differential scanning calorimetry further confirmed that there was bond water and nonfreezable bond water in the SIPN coatings. The amphiphilic SIPN coatings exhibited the anti-icing ability with a freezing delay time of more than 2 min at -15 °C, owing to the aggregation of hydrophobic POSS groups and the self-lubricating aqueous layer generated by nonfreezable bond water on the surface. The prepared transparent antifogging/anti-icing coatings could have novel potential applications in practice.

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Section: Introductionmentioning

confidence: 99%

Amphiphilic Antifogging/Anti-Icing Coatings Containing POSS-PDMAEMA-b-PSBMA

Tao

et al. 2017

ACS Appl. Mater. Interfaces

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133

103

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“…Similarly to findings in our previous work, the intensities of the diffraction peaks at 20.5 and 22.6° in PPTA-AM samples decreased compared with those of the PPTA fibers. This indicated the amorphous structures of polysilsesquioxane with thiol and amino of bifunctional groups on the surface of PPTA-AM (Li et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Amino- and Thiol- Polysilsesquioxane Simultaneously Coating on Poly(p-Phenylenetherephthal Amide) Fibers: Bifunctional Adsorbents for Hg(II)

Wang

et al. 2019

Front. Chem.

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A double reagents simultaneous functionalization (DRSF) was used to prepare porous polysilsesquioxane with NH 2 and SH bifunctional groups (PAMPSQ) coated poly( p -phenylenetherephthal amide) (PPTA) fibers adsorbents (PPTA-AM), via in situ condensations with aminopropyltriethoxysilane (APTES) and mercaptopropyltriethoxysilane (MPTES). The PAMPSQ coated on the PPTA surface was in the form of nanoparticles and its morphology varied with the proportion of the reactants. The PAMPSQ exhibited loose open meso- or macroporous features. The functional groups utilization of PAMPSQ was much higher than those of polysilsesquioxane on the mono-functional adsorbents with thiol or amino groups. The selective adsorption of PPTA-AM adsorbents for Hg(II) in binary component metal ion systems indicated their potential application in environmental remediation. The adsorption mechanism of Hg(II) onto PPTA-AM was proposed.

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“…Ice adhesion strength, which was denominated as ice shear strength in this study to evaluate the horizontal shear strength of ice detaching from the coating surfaces it adhered to, was measured using a custom-built apparatus according to our previous reports. − ,, Typically, a stainless steel sheet with the as-prepared coating was placed onto the Peltier plate, on which a hollow glass cylinder (inner diameter of 9.84 mm) hydrophobically treated with 1 H ,1 H ,2 H ,2 H -perfluorooctyl trichlorosilane was placed. Then, 450 μL of deionized water was pipetted in the cylinder, and left in a chamber with a stream of dry N 2 at a temperature of −15 °C for more than 3 h to ensure its total freezing that adhered to the coating surface.…”

Section: Methodsmentioning

confidence: 99%

“…In general, the adhesion of ice on the smooth hydrophobic coatings is lower than that on hydrophilic ones. , Polysiloxane, a kind of hydrophobic polymer with low-modulus, was universally employed in icephobic surfaces. ,− ,,,,− Except for environmentally benign, widely available with ease and noncorrosive, PDMS-involved materials are likely to be tuned with the modulus by tailoring the cross-link density . Interestingly, soft solvent-free PDMS elastomers in one-step with chain entanglement-free design exhibited their excellent softness and tailored stiffness, and large deformation easily occurred under only slight external forces. , In addition, as an organic–inorganic hybrid nanoscaled molecule, polyhedral oligomeric silsesquioxane (POSS) is of great interest. , According to our previous studies, POSS with eight-cornered groups and low surface energy was able to migrate to the submicron/nanoscaled icephobic surfaces and form rough wavy structures, , or to bring about microphase separation of POSS-containing fluorosilicone acrylate copolymers, endowing excellent hydrophobicity and water-repellency for anti-icing. − …”

Section: Introductionmentioning

confidence: 99%

Icephobic Durability of Branched PDMS Slippage Coatings Co-Cross-Linked by Functionalized POSS

Gao

Liu

Peng

et al. 2019

ACS Appl. Mater. Interfaces

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Ice accretion poses a severe impact on diverse aspects of human life. Although great efforts have been dedicated to prevent or alleviate ice adhesion to the surface of substrates by developing various icephobic coatings, it is still needed to improve the integrated performance. Herein, we present a novel strategy to prepare poly(dimethylsiloxane) (PDMS) slippage coatings by combining a soft architecturedriven branched PDMS with partial short PDMS-functionalized polyhedral oligomeric silsesquioxane (POSS) as a cocross-linker, in which silicone oil with certain viscosity was added as a lubricant. The chemical structure, surface morphology, and icephobic durability of the prepared coatings were investigated with concerns for the potential anti-icing uses. The PDMS slippage coating shed light on extraordinary icephobic durability with the ice shear strength at approximately 11.2 kPa and maintained low values below 14 kPa even after 50 icing/deicing cycles. Due to the elaborate control of the crosslink density, the side chains of the branched PDMS provided a rich storage space for entrapped silicone oil for the formation of the interfacial slippage. Moreover, the introduction of the functionalized POSS brought about significantly improved mechanical resistance in abrasion and elastic modulus. It is suggested that the branched PDMS slippage coating is a promising candidate in practical anti-icing applications.

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Synthesis of POSS-containing fluorosilicone block copolymers via RAFT polymerization for application as non-wetting coating materials

Cited by 34 publications

References 40 publications

Amphiphilic Antifogging/Anti-Icing Coatings Containing POSS-PDMAEMA-b-PSBMA

Amphiphilic Antifogging/Anti-Icing Coatings Containing POSS-PDMAEMA-b-PSBMA

Amino- and Thiol- Polysilsesquioxane Simultaneously Coating on Poly(p-Phenylenetherephthal Amide) Fibers: Bifunctional Adsorbents for Hg(II)

Icephobic Durability of Branched PDMS Slippage Coatings Co-Cross-Linked by Functionalized POSS

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